To provide a pneumatic tire for motorcycle capable of enhancing the heat-resistant durability of a rubber layer and having excellent durability of the high grip performance during the cornering at high speed.
The pneumatic tire 10 for motorcycle has a tread part 12 arranged on an outer circumference of a crown part of a carcass 2 while the carcasses 2 anchored around bead cores 1 respectively embedded in a pair of bead parts 11 form a skeleton, and a pair of sidewalls 13 extending inwardly in the tire radial direction from both ends of the tread part 12. A rubber layer 4 extending in the circumferential direction is arranged at least in a tread part end area, and the JIS hardness of the rubber layer 4 is 40-60°. Further, in the pneumatic tire 10 for motorcycle, aluminum hydroxide of 1-50 pts.mass is blended in rubber component of 100 pts.mass in the rubber layer 4.
Yumiko Sugimoto
Toshiharu Mori